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xo-reader2: bugfix: checkpoint before allocating SSMs

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This commit is contained in:
Roland Conybeare 2026-02-16 11:03:09 -05:00
commit 66d9bc5cd6
18 changed files with 78 additions and 36 deletions
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6
include/xo/reader2/ParserStateMachine.hpp
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@ -97,8 +97,10 @@ namespace xo {
/** establish toplevel @p ssm. Must have empty stack **/
void establish_toplevel_ssm(obj<ASyntaxStateMachine> ssm);
/** push syntax @p ssm onto @ref stack_ **/
void push_ssm(obj<ASyntaxStateMachine> ssm);
/** push syntax @p ssm onto @ref stack_, restore parser stack to @p ckp
* when popped
**/
void push_ssm(DArena::Checkpoint ckp, obj<ASyntaxStateMachine> ssm);
/** pop syntax state machine from top of @ref stack_ **/
void pop_ssm();